Atmospheric Levels of Formaldehyde and Acetaldehyde and their Relationship with the Vehicular Fleet Composition in Salvador, Bahia, Brazil

Detalhes bibliográficos
Autor(a) principal: Andrade, Jailson Bittencourt de
Data de Publicação: 1998
Outros Autores: Andrade, Marta Valéria Almeida Santana de, Pinheiro, Heloísa Lúcia C.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/5225
Resumo: p.219-223
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spelling Andrade, Jailson Bittencourt deAndrade, Marta Valéria Almeida Santana dePinheiro, Heloísa Lúcia C.Andrade, Jailson Bittencourt deAndrade, Marta Valéria Almeida Santana dePinheiro, Heloísa Lúcia C.2012-01-23T17:04:54Z2012-01-23T17:04:54Z1998-050103-5053http://www.repositorio.ufba.br/ri/handle/ri/5225v.9, n.3p.219-223The present work is concerned with the formaldehyde and acetaldehyde content in the gas-phase and their concentrations correlation, with the vehicular fleet, at several sites in Salvador, BA, Brazil. The samples were collected using C-18 Sep Pak cartridges coated with an acidic solution of 2,4-dinitrophenylhydrazine (DNPH). The resulting hydrazones were separated and quantified using HPLC. Samples were collected during 1 - 2 h periods at six sites located in the city of Salvador, Bahia: a bus station, a tunnel, a commercial mall parking lot, a business building parking lot a residential district and a commercial district; and at two other sites far from Salvador: Cacha Pregos and Lagoa Verde. The measured concentrations for formaldehyde and acetaldehyde ranged, respectively, from 0.20 to 88 ppbV and from 0.40 to 93 ppbV. The formaldehyde/acetaldehyde concentration ratio determined in these sites were: 0.66 (commercial mall parking lot); 0.65 (business building parking lot); 4.4 (bus station); 1.2 (tunnel); 1.0 (residential area), 1.7 (commercial area), 1.1 (Cacha Pregos) and 0.8 (Lagoa Verde). In the case of the tunnel, it represents the hole vehicular fleet of the city. Traffic counts taken during the sampling periods indicated that 82% of the vehicles at that site were light duty engines and 18% were heavy duty vehicles. A simple calculation using the tunnel fleet composition and the ratio formaldehyde/acetaldehyde at the bus station (as a diesel signature) and at the parking (as a light duty vehicles signature) revealed an expected tunnel ratio of 1.3 which is very close to the measured ratio 1.2. Indeed, the expected ratio for both the commercial area and residential area was, respectively, 1.7 and 0.62. It allows us to conclude that the atmospheric level of formaldehyde and acetaldehyde in Salvador has a close relationship with the vehicular fleet composition.Submitted by Rigaud Andréa (andrearigaud16@yahoo.com.br) on 2012-01-23T17:04:54Z No. of bitstreams: 1 a04v09n3.pdf: 55718 bytes, checksum: c8ac004c237e4c7217bd8cae026f87ec (MD5)Made available in DSpace on 2012-01-23T17:04:54Z (GMT). No. of bitstreams: 1 a04v09n3.pdf: 55718 bytes, checksum: c8ac004c237e4c7217bd8cae026f87ec (MD5) Previous issue date: 1998-05São Pauloformaldehydeacetaldehydecarbonylalcohol-fueled vehiclesAtmospheric Levels of Formaldehyde and Acetaldehyde and their Relationship with the Vehicular Fleet Composition in Salvador, Bahia, BrazilJournal of the Brazilian Chemical Societyinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleengreponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAinfo:eu-repo/semantics/openAccessLICENSElicense.txtlicense.txttext/plain1762https://repositorio.ufba.br/bitstream/ri/5225/2/license.txt1b89a9a0548218172d7c829f87a0eab9MD52ORIGINALa04v09n3.pdfa04v09n3.pdfapplication/pdf55718https://repositorio.ufba.br/bitstream/ri/5225/1/a04v09n3.pdfc8ac004c237e4c7217bd8cae026f87ecMD51TEXTa04v09n3.pdf.txta04v09n3.pdf.txtExtracted texttext/plain18750https://repositorio.ufba.br/bitstream/ri/5225/3/a04v09n3.pdf.txta17fb852fd45f3e87e6cdd4e1e516e37MD53ri/52252022-07-05 14:03:43.885oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-07-05T17:03:43Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv Atmospheric Levels of Formaldehyde and Acetaldehyde and their Relationship with the Vehicular Fleet Composition in Salvador, Bahia, Brazil
dc.title.alternative.pt_BR.fl_str_mv Journal of the Brazilian Chemical Society
title Atmospheric Levels of Formaldehyde and Acetaldehyde and their Relationship with the Vehicular Fleet Composition in Salvador, Bahia, Brazil
spellingShingle Atmospheric Levels of Formaldehyde and Acetaldehyde and their Relationship with the Vehicular Fleet Composition in Salvador, Bahia, Brazil
Andrade, Jailson Bittencourt de
formaldehyde
acetaldehyde
carbonyl
alcohol-fueled vehicles
title_short Atmospheric Levels of Formaldehyde and Acetaldehyde and their Relationship with the Vehicular Fleet Composition in Salvador, Bahia, Brazil
title_full Atmospheric Levels of Formaldehyde and Acetaldehyde and their Relationship with the Vehicular Fleet Composition in Salvador, Bahia, Brazil
title_fullStr Atmospheric Levels of Formaldehyde and Acetaldehyde and their Relationship with the Vehicular Fleet Composition in Salvador, Bahia, Brazil
title_full_unstemmed Atmospheric Levels of Formaldehyde and Acetaldehyde and their Relationship with the Vehicular Fleet Composition in Salvador, Bahia, Brazil
title_sort Atmospheric Levels of Formaldehyde and Acetaldehyde and their Relationship with the Vehicular Fleet Composition in Salvador, Bahia, Brazil
author Andrade, Jailson Bittencourt de
author_facet Andrade, Jailson Bittencourt de
Andrade, Marta Valéria Almeida Santana de
Pinheiro, Heloísa Lúcia C.
author_role author
author2 Andrade, Marta Valéria Almeida Santana de
Pinheiro, Heloísa Lúcia C.
author2_role author
author
dc.contributor.author.fl_str_mv Andrade, Jailson Bittencourt de
Andrade, Marta Valéria Almeida Santana de
Pinheiro, Heloísa Lúcia C.
Andrade, Jailson Bittencourt de
Andrade, Marta Valéria Almeida Santana de
Pinheiro, Heloísa Lúcia C.
dc.subject.por.fl_str_mv formaldehyde
acetaldehyde
carbonyl
alcohol-fueled vehicles
topic formaldehyde
acetaldehyde
carbonyl
alcohol-fueled vehicles
description p.219-223
publishDate 1998
dc.date.issued.fl_str_mv 1998-05
dc.date.accessioned.fl_str_mv 2012-01-23T17:04:54Z
dc.date.available.fl_str_mv 2012-01-23T17:04:54Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.repositorio.ufba.br/ri/handle/ri/5225
dc.identifier.issn.none.fl_str_mv 0103-5053
dc.identifier.number.pt_BR.fl_str_mv v.9, n.3
identifier_str_mv 0103-5053
v.9, n.3
url http://www.repositorio.ufba.br/ri/handle/ri/5225
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
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